Artificial fuel.



No. 741,493. 4 V 1 I iatented October 13, 190%.

' UNITED STATES PATENT OFFICE.

FERDINAND O. VON- HEYDEBRAND UND DER LASA, OF BROOKLYN, NEW

'- YORK. I y a ARTIFICIAL FUEL.

SPEGIFIGATION forming part of Letters Patent No. 741,493, dated October 13, 1903. I

Application filed July 17, 1903. Serial No. 166,014. (No specimens.)

To all whom it may concern.- -To produce one ton of my improved fuel, Be it known that LFERDINAND'O. VON HEY- I take from twenty to twenty-five pounds of DEBRAND UND DER LASA, a citizen of the chlorid of lime, about fifty pounds of un- United States, and a resident of the city of burned powdered limestone or oxid of lime,

5 Brooklyn, State of New York,have invented from one hundred to two hundred pounds of certain new and useful Improvements in Arcoal-tar pitchor other equivalent bituminous 5o tificial Fuel; and I do hereby declare the fol- .matter, using the latter as a binder, from lowing to be a full, clear, and exact descripfifty to one hundred pounds of earth or clay, tion of the invention, such as will enable othincluding, if desired, pulverizedrock, about -to ers skilled in theart to which-it appertains to seventeen hundred and eighty pounds of make and use the same. carbon, preferably in the form of coal-dust, My invention relates to artificial fuel, and bituminous or anthracite, peat or lignite. has for its object to produce a fuel'having 9. These ingredients after being thoroughly 7 highdegree ofheat efficiency andwhichburns mixed in any suitable machine are finally t 5 practically without smoke, without clinkers, briqueted or caked in sizes andshapes suit-- 7 and with the least'possible'residue. To this able for the particular use for which they are end the composition I employ has a carbonaintended and preferably being graded in ceous base compounded with earth,-clay, or sizes corresponding with the several grades 7 powdered rock and certain calcareous conof ordinary coal.

2o stituents, said composition being especially Such being the composition of my fuel it is adapted for domestic and commercial use. to be noted that the employment of the chlo- In carrying out the invention I combine in rid of lime is particularly useful, inasmuch an intimate admixture granulated or powas it tends to counteract the deleterious efdered coal, either soft or hard, bituminous or feet of the sulfur given off by the coal in the 25 anthracite,.peat, lignite, or other industrial process of burning. It is also tobe noted carbon, chlorid of lime, oxid or carbonate of that the earthy substances are employed only lime, such as limestone, and a binder conin such proportion as is necessary to prevent sisting, preferably, of coal-tar pitch or other the fusion and caking of the particles of equivalent bituminous matter and earth "or coal, so as to enhance the free burning of 30 clay, including pulverized rock, if desired. the same and prevent the usual puffing up The compound thus formed is molded, comor swelling which is incident to the composi- 7 5 pressed, briqueted, or caked in pieces of tion of masses of bituminous coal. The oxid suitable size and such formation as may be or carbonate of lime in the composition plays desired to correspond with the several grades the important part of not onlyincreasing the 35 of ordinary coal. heat efficiency of the fuel, but assists the The relative proportions of the ingredients chlorid of lime in the elimination of smoke may of course be varied within certain limand also cooperates with the pitch and clay I its, and it is therefore to be understood that to form an effectual binder.- while the amounts of the several ingredients Having thus described my invention, what 40 hereinafter specified constitute an econom- I claim is icaland efficient, and therefore preferable 1 A composition of matter for artificial composition, yet the proportion may be vafuel, consist-ingof carbon; earth or clay; chloried more or less without departing from the rid of lime; oxid or carbonate of lime; and a invention binder 5 all in about the proportion specified.

2. A composition of matter for artificial seventeen hundred and eighty parts of can fuel, consisting of earth or clay; crushed coal bon, substantially as described. or carbon; coal-tar pitch; chlorid of lime; and In testimony whereof I aflix my signature oxid or carbonate of lime; all in about the in presence of two witnesses.

roportions specified. T

5 p 3. A composition of matter for artificial FDRDIBAM) 0' ON \SA fuel, consisting of about twenty-five parts of chlorid of lime; fifty parts of unburned, poW- \Vituesses: I dered limestone; one hundred parts of coal- J. A. GOLDSBOROUGH,

IO tar pitch; fifty parts of earth or clay; and CHARLES LOWELL HOWARD. 

